how many and what psu rating to get for new build

sub-80

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Hey guys

For some reason did not receive emails that there were replies.

Quote from: beegatewood on February 24, 2014, 10:11:53 PM

The problem is 1x unpower riser only can deliver 25 watt.

That is why am going to use a powered usb riser.

Quote from: 247crypto on February 25, 2014, 12:13:29 AM

dean0

Can You please, put video with sound of working rig online (Vimeo, Youtube...)?

There is a video in the first post and the in their channel they use the h81pro more than once without a riser, but I have read more than three threads who have gotten 6 cards on this mobo to work with a powered riser.

Quote from: InCoinsITrust on February 25, 2014, 02:32:45 AM

H81 must be good board, for me it is clear that 2x additional molex adapters cant feed 6 cards with extra power, you still need 4 powered risers, as far as i see it.

Am not sure, but additional power sources (powered risers) ensures better stability IMO.

I browsed in my local stores and I found one psu that had a good dollar to watt ratio and a was the only one with 80 plus gold. Its a thermaltake toughpower xt 1475Watt. I found another corsair ax1200i platnium but it was 50 dollars more expensive.

So am thinking of buying two (Aaaa... my heart skipped a beat) I really hope I get earn my money back.

InCoinsITrust

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H81 must be good board, for me it is clear that 2x additional molex adapters cant feed 6 cards with extra power, you still need 4 powered risers, as far as i see it.

247crypto

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dean0

Can You please, put video with sound of working rig online (Vimeo, Youtube...)?

beegatewood

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The problem is 1x unpower riser only can deliver 25 watt.

sub-80

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Its kind of too late I already bought the motherboard, but I have also read from several forums of people using this board and also using a powered riser. I guess they could have bad quality control in the factory???

notlist3d

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Quote from: sub-80 on February 24, 2014, 12:21:54 PM

asrock h81pro motherboard.

I highly suggest another motherboard. Look at all the problems if you plan on using un-powered risers. The motherboard is good price I never did get over 5 to work with it(had 2 motherboards of them sadly).

Emailed them about it asked for compatability, and asked about 6 cards..... they sent back their "lab" was able to get 6 260's to power. They didn't have 6 280x of any brand to test I believe most they sent was a test with 2 of them. This motherboard is hype.

On watts I split it sadly between two of these boards and have 3 cards running with 1000 watts powering motherboard, cards, ssd, etc. Using a Corsair RM1000.

sub-80

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hey guys;

Decided to jump in even though it is a bit late. Am building a 6 card rig with asrock h81pro motherboard.
5 r9 280x (actually 4 3 Roll Eyes

but planning to buy another ~~one~~ two) and one HD 7950. Currently have a spare thermaltake 550w 80 silver plus. So how many psu units do i need?

According to the review sites at full load the 7950 pulls a max of 360watts and the R9 280X had a highest reading of 402 watts from sapphire toxic at this site: http://www.pcper.com/reviews/Graphics-Cards/AMD-Radeon-R9-280X-Roundup-ASUS-MSI-and-Sapphire/Power-Temperature-and-Noise

Multiplying 400 by 6 gives 2400 watt and 150 watt for cpu, stock cpu cooler ram and ssd. so 2600WATTS :O

Update: Saw this http://www.youtube.com/watch?v=WfqfEpanpig&list=UUVVWXoQfMfQVuzxcLylq9aA&feature=c4-overview but it seems abit of an overkill.

Topic: how many and what psu rating to get for new build (Read 603 times)